The 23-year-old model took to Instagram on Sunday to share a photo that highlights her bare butt (you're welcome!)

"Happy Sunday! #buttday #bruceweber #sundayfunday," the blond beauty wrote yesterday. The pic shows Upton modeling a semi-see through dress during a high fashion photo shoot with photographer BruceWeber. Upton faces away from the camera, giving fans a perfect view of her naked bum underneath the gorgeous gown. Meanwhile, Upton's blond locks it up in an intricate hairdo.

Upton returned to Instagram earlier today to share a gorgeous beauty shot of her face. Upton's hair partially covers her face as she stares seductively at the camera. Fans also get a hint of her amble cleavage in a low cut T-shirt.